vbscript search for text

hi all
please help with two issues:
1. using vbscript, how do I search for a string/text in an Excel sheet
and return the row?
2. using vbscript, is there a way of searching for the oldest date and
the latest date, like min/max kind of thing. Th date is in this format
yyyy-mm-dd hh:mm:ss.
thanks in advance
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